baber/WOPTO huggingface dataset:
Patent GB-436895-A (GB)
Title: A centrifuge
IPC: B04B5/00
Filed: 1934-04-24
Abstract: 436,895. Centrifugal separators. SCHULZ, H., 87, Berlinerstrasse, Tempelhof, Berlin. April 24, 1934, No. 12276. Convention date, May 10, 1933. [Class 23] A centrifuge for separating solids from liquids has an inner drum 11 on a spindle 13 arranged at right angles to the axis of the outer rotary casing 1. Bearings 2, 3 support the casing 1, which is driven by means of a pulley 4, and the drum 11 is rotated slowly on its axis by means of reduction gearing 6-10 between a fixed shaft 5 and a toothed ring 12 on the drum. The mixture passes through the entry 15 to the nozzles 18 and to the cells 19 arranged inside the drum wall. The separated liquid escapes over the wall 20, and the solids remain in the cells which are closed by flaps 21 except at the discharge zones where the solids are discharged through the funnels 25. Each of the cells 19 have a radial side 19<a>, Fig. 6, extending substantially parallel to the spindle 13, and a sloping side 19<b>. The angle of inclination of the sloping side is such that the separated solids remain in the cell while mush and liquid slip over the side into the next cell. The walls may be warped, and they may be partly made as sieves, so that liquid passes through while solids are retained. The overflowing liquid passes through openings 26 in the casing to the gutters 29. In the modification shown in Fig. 9, the cells are constructed in the form of cups 30 and are carried on shafts 31 so that the cups can be tilted to discharge the solids into the funnels 25, Fig. 2.
Patent GB-1207675-A (GB)
Title: Improvements in or relating to methods and apparatus for the manufacture of composite metal tubing
Inventor: SALLITT WILLIAM BAINES
IPC: B23K9/04
Filed: 1967-03-16
Abstract: 1,207,675. Making composite metal tubing, welding by fusion. INTERNATIONAL COMBUSTION (HOLDINGS) Ltd. 14 June, 1968 [16 March, 1967], No. 12317/67. Headings B3A and B3R. A method of making composite metal tubing comprises cladding by weld deposition either the outer or inner surfaces or both surfaces of a hollow metal ingot and then forming the latter into tubing. A hollow mild steel ingot is mounted for rotation about a horizontal axis and a welding head is supported on a carriage for reciprocation either parallel to or along the axis of the ingot. The filler wire is applied at an angle of 45 degrees, which angle is suitable for cladding the ingot with overlapping beads of austenitic stainless steel. The clad ingot is reduced to tubing by any suitable process and heat treated if necessary. The welding head, which is cooled, includes a tube for the filler wire, a purge tube delivering purge gas to the wire feed tube and a shield gas supply tube. The shield gas may be argon plus 5% oxygen.
Patent GB-797567-A (GB)
Title: Improvements in or relating to electric headlights for automobiles
IPC: F21V11/16
Filed: 1956-04-23
Abstract: 797,567. Electric incandescent lamps with internal screens. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 23, 1956 [April 28, 1955], No..12332/56. Class 39(2) A sealed beam headlamp for motor vehicles comprises a parabolic reflector 22 with a lens 20 sealed around its periphery, and a major, or "driving", filament 34 and minor, or "dipping", filament 36 mounted substantially as the focus of the reflector, with the minor filament substantially above the major as viewed in side elevation, there being a filament shield or screen 38 which is located, in close proximity to the filament, betwen the filaments and the lens, and has the general configuration of a hollow spherical sector with a horizontal base terminating in corners which may be formed where the base 40 meets the vertical edges of the screen as in Fig. 6, or by cut-out portions 42, Fig. 2, at each end of the base. The relative arrangement of the parts is such that a straight line through the minor filament 36 and the upper part of the reflector periphery,. as viewed in side elevation, will be intersected by the shield 38, and a straight line parallel to the reflector axis and through the major filament 34 will also be intersected by the shield, the spherical centre of the shield being located in close proximity to the minor filament, between the reflector and a plane which runs through the minor filmament perpendicular to the reflector axis, and sufficiently above the minor filament so that a straight line through the minor filament and said spherical centre will pass below the bottom of the shield, as viewed in side elevation. The minor filament 36 may be displaced, slightly to the right relative to the major filament 34, as shown in Fig. 2, wherein in order to provide cornering-light, the. two lower half lateral portions of the shield 38 are cut out at 42. The shield may be made of nickel-iron and provided with a blue-oxide coating to reduce reflection therefrom. As shown, the lens 24 is substantially composed of a series of baseupward prisms 26 connected by risers 28, on the inner surface of the lens, and the axis of the reflector is tilted slightly downwardly with respect to the axis of the lens. Fig. 9 shows how the direct light: pattern of the major filament is shielded from the eyes of the driver approaching the lamp, and the effect of the cornering cut-outs 42 of the embodiment shown in Fig. 2, the trapezoidal light-shielded portion below the shaded circular segment being defined by corners at radii disposed clockwise from the vertical at angles of 38 degrees, 128 degrees., 232 degrees and 322. degrees, and extending from the point of intersection of the reflector axis and the plane defined by the reflector periphery.
Patent GB-1470393-A (GB)
Title: Drug for the treatment of radiation sickness
IPC: A61K38/00
Filed: 1974-03-20
Abstract: 1470393 Compositions containing a glycoproteic complex SPITALUL CLINIC FILANTROPIA BUCURESTI 20 March 1974 12397/ 74 Heading A5B A drug composition for treating radiation sickness comprises an alpha, glycoproteic complex (as defined), kalikrein inhibitor polypeptide, thiamine diphosphate, L-tryptophane and L- arginine.
Patent GB-962214-A (GB)
Title: Position sensing device
IPC: F15C1/00
Filed: 1963-03-29
Abstract: 962,214. Detecting record positions. SPERRY RAND CORPORATION. March 29, 1963 [April 11, 1962], No. 12460/63. Heading G4M. The position of a record card 12 travelling along a support 10 is detected by means of orifices 16 connected to a source 40 of compressed air and individual fluid amplifiers 26. When the leading edge of card 12 covers orifice 16, the pressure in control inlet 22 rises and causes a power jet 31 to be switched from channel 34 to channel 36. The switching of successive devices 26 as the card travels along support 10 may be used to control a sensing or punching mechanism. As an alternative, the record may be a tape provided with holes at predetermined positions to effect switching of devices 26 as they pass over the orifices 16.
Patent GB-540633-A (GB)
Title: Improvements relating to electric motor control systems
IPC: H02P3/20
Filed: 1940-08-02
Abstract: 540,633. Dynamo-electric braking. BRITISH THOMSON-HOUSTON CO., Ltd., BENNS, H. V., and GREGORY, J. P. Aug. 2, 1940, No. 12504. Drawings to Specification. [Class 38 (iii)] Relates to means for braking A.C. motors by plugging and employing a relay provided with two coils responsive to variations in the voltage of the primary and secondary of the motor to interrupt the reverse power connection when the motor reaches approximately zero speed such as is described in Specification 522,632. According to the present Specification, the coils of the relay are responsive respectively to the voltage supplied to the primary winding and to the current in the primary or secondary winding of the motor. The current for the relay may be obtained from a current transformer. Specification 540,632 is referred to.
Patent GB-1392927-A (GB)
Title: Curtain weight
IPC: A47H23/01
Filed: 1971-05-01
Abstract: 1392927 Curtains G CALVO and S CASALS [trading as C & C SOFT FURNISHING ADVISERS] 13 July 1972 [1 May 1971] 12579/71 Heading A4S A curtain weight comprises a strip 1 of flexible material coated with an adhesive on one surface 2, a part of the strip being folded on itself at 3 to form a pocket 4 enclosing a weight body and a tab portion for attachment to the curtain. The adhesive is preferably sensitive to pressure and heat, the pocket being sealed and the attachment made by means of a domestic iron. In modifications, the strip is coated with a pressure-sensitive adhesive protected by a peel-off backing, the weight is adhered to one end of the strip, which is not folded, or one end of the strip is wrapped round the weight without enclosing it. In a further modification, adhesive applied directly to the weight body is utilized to adhere the weight body to a curtain.
Patent GB-1503352-A (GB)
Title: Dense pile fabric and machine and method for producing the same
IPC: D05C15/28
Filed: 1975-03-26
Abstract: 1503352 Tufting machine & method SPENCER WRIGHT INDUSTRIES INC 26 March 1975 [6 May 1974] 12591/75 Heading DIG  A dense pile material is provided by stopping the longitudinal feed of the backing fabric B, inserting a tuft L, moving the fabric or needles laterally relatively to each other and inserting a further tuft before the longitudinal feed is restarted. Tufts may thus be inserted in a lateral row at a lateral spacing of ¢, 1/3 or  needle spacing. As shown, the lateral movement of the fabric relatively to the needles may be provided by shogging the needle plate 32 under the control of cam 110 driven from main shaft 14. Longitudinal feed is provided by rollers (46, 48 Fig. 1 not shown) rotated intermittently by a cam 66 on a shaft 62 driven from main shaft 14 and oscillating a follower arm 74 connected through a one way clutch to a pulley 76 driving a shaft 50 connected to the feed roller (46). For Figures see next column
Patent GB-1389932-A (GB)
Title: Flexible polyurethane foams
IPC: C08G18/09
Filed: 1972-03-17
Abstract: 1389932 Polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 12 March 1973 [17 March 1972 19 April 1972] 12594/72 and 18114/72 Heading C3R Flexible polyurethane foams are prepared by reacting an organic polyisocyanate with a polyether polyol having a hydroxyl number between 15 and 30, in the presence of a blowing agent and a catalyst for the trimerization of isocyanates, the polyisocyanate being used in such an amount as to provide between 0À9 and 1.25 equivalents of isocyanate groups for each equivalent of active hydrogen. The polyisocyanates, polyethers, blowing agents and catalysts are those used conventionally in the art. In an example a flexible foam is prepared by mixing a poly-(oxypropylene-oxyethylene) -triol of M.W. 7010, potassium acetate as trimerization catalyst, water and tolylene diisocyanate at an isocyanate index of 110.
Patent GB-972686-A (GB)
Title: A process for producing a sintered metallic article
IPC: B22F3/11
Filed: 1961-04-07
Abstract: A sintered porous metal body such as nickel is produced from a shaped mixture of nickel powder, graphite and a binder which is sintered at 1150-1200  DEG C. and the sintered body is then heated to 1100  DEG C. in a decarbonizing atmosphere such as carbon dioxide or wet hydrogen to eliminate the graphite from the sintered body. According to an example the powder mixture consists of equal volumes of nickel and graphite, the binder being tragacanth gum in water.
Patent GB-577059-A (GB)
Title: Method and apparatus for manufacturing optical prisms
IPC: G02B5/04
Filed: 1944-07-03
Abstract: 577,059. Grinding and polishing prisms. KODAK, Ltd. July 3, 1944, No. 12667. Convention date, July 3, 1943. [Class 60] A support for prisms while being polished &c. comprises a V-block, the recesses in which have raised surfaces by which the position of one surface of the prism is accurately defined with respect to the grinding plane. As shown in Fig. 3, one wall of the recess has two raised surfaces 14, while the other has a single raised surface 15 ; the angle between the grinding plane, which is parallel with the top surface of the block, and the prism surface resting on the surfaces 14 is thus accurately determined. In making a prism in which it is of major importance to reduce the error in the 90 degrees angle to a minimum, the sequence of operations consists in first polishing the hypotenuse surface with the prism supported in a 90 degrees block as in Fig. 4. The prism is then transferred to a 45 degrees block shown in Fig. 5, having two locating surfaces on the sloping wall whereby the sloping side of the prism, already polished, determines one of the 45 degrees angles of the prism. The prism is again transferred to another 45 degrees block having two locating surfaces in the vertical wall against which the previously polished wall is located, whereby the 90 degrees angle is produced with minimum error. This sequence also minimises pyramidal error. Polishing is continued in each case till there is a clearance t all round. When prisms of the form shown in Fig. 10 are. to be polished, 45 degrees blocks having two locating surfaces arranged horizontally and vertically respectively on the vertical wall W, Figs. 12 and 15, are used with a saw-tooth bar 23, Fig. 13, resting on its base 24 on the sloping walls. The bars have one or two locating surfaces 41 on the vertical walls and surfaces 33 on one of the walls 27 on which the sidea R<1>, R<2> of the prism are supported. The prisms may be supported in those areas not in contact with the locating surfaces by wax.
Patent GB-1487803-A (GB)
Title: Controllable safety cap for oil and or gas well
IPC: F16K31/122
Filed: 1975-03-26
Abstract: 1487803 Flow control assembly ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES 26 March 1975 [12 April 1974] 12729/75 Heading E1F A pressure actuated flow control assembly for sealing off production tubing 1 in gas or oil wells comprises a main member 4 having ports 7 to allow through flow from bottom to top, a valve member 8 for closing the ports secured to a main piston 11 movable in a cylinder 12 into which pressure fluid can be introduced via conduit 21, a compression spring 13 acting to urge piston 11  upwards, and a further valve member 16 disposed in a passage between opposite sides of the valve member 8 connected to an auxiliary piston 14 which is acted on by the pressure fluid and spring 17; reduction in the pressure of the pressure fluid supplied to cylinder 12 resulting in the springs urging the valve members 8, 16 upward to a closed position and an increase in the pressure of the pressure fluid first urging down piston 14 to equalise pressure between the sides of valve member 8 then urging down piston 11 to open valve member 8.
Patent GB-234130-A (GB)
Title: Improvements in processes and apparatus for the production of photographic sound records
IPC: G11B7/28
Filed: 1925-05-15
Abstract: 234,130. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). May 17, 1924, [Convention date]. Printing-apparatus with continuous movement of negative and printed surface.- In apparatus for the production of photographic sound records, especially combined kinematograph and sound record films, a negative film 5 and a blank positive film 6 move together past a picture printing light 4 and a sound printing light 7 both so mounted as to be displaceable towards or away from the printing apertures.
Patent GB-872274-A (GB)
Title: A process for lowering the pour point of high boiling point hydrocarbon mixtures, especially lubricating oils
Inventor: SCHLENK WILHELM
IPC: F02B3/06
Filed: 1959-04-15
Abstract: In a process for lowering the pour point of hydrocarbon mixtures having a boiling range above 200 DEG C. by treatment with urea, 10 to 60% (by weight of the mixture) of one of the following auxiliary additives is added to the oil separately from the urea:-C15+ hydrocarbons, C10+ alcohols, C9+ esters of mono- and di-carboxylic acids and mono- or di-alcohols, C9+ ketones and C8+ ethers, all being linear and having a miximum of 45 carbon atoms.  The process may be effected in one or more stages and may be preceded by removal of the more readily separable constituents, e.g. with urea or by mechanical means such as filtration.  Solvents such as C3-chlorohydrocarbons, C5- carboxylate esters and C6- ketones may be used.  Hydrocarbon mixtures mentioned are lubricating, gear, cylinder and diesel oils. The urea may be recovered with water or methanol and the solvent, auxiliary additive and raffinate may be separated by distillation. In examples, the following auxiliary additives are used:-methyl myristate; cetane; soft paraffin wax; n-pentadecane; hard paraffin wax; n-dodecyl alcohol; n-tetradecyl alcohol; di-n-heptyl ether; nonanone-(5); undecanone-(2); undecanone-(6); pentadecanone-(8); methyl caprate; di-n-amyl glutarate; n-amyl caproate; n-nonyl acetate and n-hexadecane.
Patent GB-826581-A (GB)
Title: Presser foot for sewing machines
IPC: D05B29/06
Filed: 1957-04-18
Abstract: 826,581. Sewing machines. RUHRMANN, J. April 18, 1957, No. 12798/57. Class 112 A presser foot 2 for use in sewing the tape of a sliding clasp fastener to the edge of material, is formed with a needle-passing notch 22 in its inner edge, whereby the seam can be made immediately adjacent the fastener elements, and is shortened to bring the front edge 21 immediately adjacent the notch 22, whereby the seam can be continued to a point closely adjacent the sliding clasp 33.
Patent GB-543807-A (GB)
Title: Improvements in or relating to the production of roller-bearing cages
IPC: B23B41/00
Filed: 1940-08-13
Abstract: 543,807. Making cages for roller bearings; drilling. COOPER ROLLER BEARINGS CO., Ltd., and KAY, S. Aug. 13, 1940, No. 12946. [Classes 83 (ii) and 83 (iii)] Cages for roller bearings are first formed with more metal than the finished product so that a series of holes b can be drilled of a diameter less than that of the rollers. The cage is then turned or bored to break into these holes forming slots c and the holes are opened out to finished size by a cutter guided by a bush f that passes along the slots as the holes are bored. The bush is supported rigidly by a slide g that has a long and ngid bearing. The cage is mounted on an indexing head and the slide carrying the bush f may also carry the spindle and a small electric motor. The cage is then machined, if necessary, to break into the holes on the other side.
Patent GB-1421151-A (GB)
Title: Traffic signals
IPC: E01F9/529
Filed: 1972-03-20
Abstract: 1421151 Road surface barrier; signs MAKEARN HOLDINGS Ltd 16 March 1973 [20 March 1972] 12959/72 Heading E1G [Also in Division G4]  A traffic signalling device adapted to be inset in a road surface includes a rotatable signal member 3 and means for rotating the member 3 from an inoperative position in which a flattened side 7 is level with the road surface to an operative position in which portions 11, 12, 13 of the member 3 project from the road surface so as to impart shock to the wheels of a vehicle passing over the device. The portions 11, 12, 13 may have different surface colouring and varying resilience. Reflecting studs 14 may be provided in the roller surface. In modifications, Figures 5, 6 (not shown), the signal member comprises an eccentrically mounted roller or a solid roller segment. A number of devices may be arranged end-to-end across a roadway and may be operated by a hydraulic motor through a shock-absorbing coupling. Groups of such devices may be spaced along a roadway and remotely controlled.
Patent GB-1480436-A (GB)
Title: Lifting shackle
IPC: B66C1/66
Filed: 1976-06-28
Abstract: 1480436 Shackles HARRIS & EDGAR Ltd 28 June 1976 [27 March 1975] 12990/75 Heading F2Q A shackle for lifting an article comprises a base member 1 for attachment to the article, the base having a recess 4 in one side for receiving the neck of a bolt 7 screwed into the article, a U-shaped loop member 3 pivotally attached to the base member 1 by means of a shackle pin 2, and a retaining plate 6 welded to the loop member 3 and adapted to prevent the bolt 7 from coming out of the recess 4 when the loop 3 is raised from the position shown in Fig. 2.
Patent GB-626552-A (GB)
Title: Improvements relating to boat release gears
IPC: B63B23/58
Filed: 1947-05-15
Abstract: 626,552. Boat release gear. WILLIAMS, W. F. May 15, 1947, No. 13071. [Class 115] A boat release gear of the type described in Specification 10,979/13, [Class 115], has the upper edge of the hole D-shaped to allow the bolt A to incline upwardly in its withdrawn position, the bolt having a notch 60 to hold the bolt in its open position. The bolt actuating spring 63 is of the coil type, shaped at its end to lift the end of the bolt. The mouth of the part 5 is tapered to ease the entry of the fall link 67.
Patent GB-1155349-A (GB)
Title: Self-Adjusting Movable Joint Device.
Inventor: SCHEUBLEIN WILLIAM ARTHUR
IPC: F16C11/06
Filed: 1968-03-18
Abstract: 1,155,349. Wear-compensated joints. MOOG INDUSTRIES Inc. 18 March, 1968, No. 13090/68. Heading E2F. A joint, especially of the ball and socket type, which is self-adjusting to compensate for wear, comprises a housing 10 and a relatively movable (at least rotatable) stud 14 with a head end 13 and shank 15. Above the stud is a wear-compensating unit 24 which is threadedly engaged with the internally threaded ring member 25 which is fixed relative to the housing (and could be replaced by a thread on the housing itself). A friction element 32, e.g. on "O"-ring, in an annular groove in the base of the unit 24 contacts the top of the stud and a curved spring finger 33 projects from the top of the unit into the thread on the member 25 and is angled so that it tends to prevent rotation of the unit 24 in one direction. Movement of the unit in the other direction due to relative rotation between the stud and housing causes the unit to move towards the stud on its thread to take up slack until slipping occurs between the stud and the friction element. In a modification (see Figs. 3 and 4, not shown), the joint is one for use under compression when the friction element acts on the sides of the stud and the compensating unit is essentially "beneath" the stud. In a further modification (see Figs. 5 and 6, not shown), the stud has a flat head and the friction element is a magnetised plate fitting into the base of the compensating unit and functions partly by virtue of the magnetic attraction between it, the stud and the unit.
Patent GB-1060428-A (GB)
Title: Process for the manufacture of 5'-purine nucleotides by a fermentation method
IPC: C12P19/32
Filed: 1964-03-31
Abstract: 51-Purine nucleotides are prepared from purine bases or nucleosides by cultivating a micro-organism belonging to Brevibacterium ammoniagenes in a medium containing (1) pantothenic acid or other substance convertible into coenzyme A and (2) thiamine or other substance convertible into thiamine pyrophosphate, or natural substances containing such compounds. In place of pantothenic acid itself there may be used calcium pantothenate, b -alamine, pantethine, coenzyme A, meat extract, liver extract, rice bran, molasses or fish solubles, and as sources of thiamine there may be used rice husk and bran, yeast extract or liver extract. Adenine or guanine requiring mutants of the micro-organism may be used, these substances then being inluded in the medium.